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Peripheral pulmonary vascular resistance
Journal of Applied Physiology, 1993The pressure-flow relationship has been studied in a peripheral portion of the lung vasculature in anesthetized dogs with use of a double-lumen catheter wedged in a distal pulmonary artery. One lumen was used to infuse mixed venous blood in the wedged area and the other to measure the corresponding perfusion pressure. Flow ranged from 0 to 9.2 ml/min,
F, Schrijen, C, Saunier, F, Chabot
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Pulmonary vascular resistance and vascular transmural gradient
Journal of Applied Physiology, 1960Perfusion studies were made on vascular beds of isolated dog lungs. Submerged, gas-free, fluid-distended lobes served for studies of resistance versus transmural pressure in a technique that abolished gravitational effects. Air-distended lobes with varying degrees of pulmonary edema were used to display the transmural gradient differences produced by ...
T C, LLOYD, G W, WRIGHT
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Intensive Care Medicine, 2003
Almost 20 years ago, Adriaan Versprille published an editorial in this journal to explain why, in his opinion, the calculation of pulmonary vascular resistance (PVR) is meaningless [1]. The uncertainties of PVR were underscored a year later by McGregor and Sniderman in the American Journal of Cardiology [2]. Obviously, both papers failed to convince. A
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Almost 20 years ago, Adriaan Versprille published an editorial in this journal to explain why, in his opinion, the calculation of pulmonary vascular resistance (PVR) is meaningless [1]. The uncertainties of PVR were underscored a year later by McGregor and Sniderman in the American Journal of Cardiology [2]. Obviously, both papers failed to convince. A
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Hematocrit-corrected Pulmonary Vascular Resistance
American Journal of Respiratory and Critical Care Medicine, 2018The diagnosis and evaluation of severity of pulmonary vascular disease rests on the invasive determination of a pulmonary vascular resistance (PVR). It is often overlooked that PVR is linearly related to the viscosity of the blood, which in turn is curvilinearly related to hematocrit.
Vanderpool, Rebecca, Naeije, Robert
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Renal washout and vascular resistances
European Journal of Nuclear Medicine, 1987Evaluation of the vascular transit through a transplanted kidney depends on the convolution of the arterial bolus in the renal vasculature. In order to stress the importance of the renal artery, an example where a moderate stenosis resembled allograft rejection is given.
S L, Nielsen +3 more
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2021
The focus of this chapter is on understanding the complexity associated with the resistance to flow through the pulmonary circulation. Pulmonary vascular resistance (PVR) is a variable that reflects the physical size (diameter and length) of the vascular tree at any moment in time.
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The focus of this chapter is on understanding the complexity associated with the resistance to flow through the pulmonary circulation. Pulmonary vascular resistance (PVR) is a variable that reflects the physical size (diameter and length) of the vascular tree at any moment in time.
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Vascular resistance in splenic perfusion
Journal of Surgical Research, 1968Abstract Eighteen pig spleens have been perfused ex vivo, 9 each with heterologous and homologous blood. Angiographic evidence of spasm in the main splenic arteries probably caused the temporary early resistance to perfusion, with both homologous and heterologous blood.
A R, Moore, C J, Mieny, B, Eiseman
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